diff --git a/config/mkinc b/config/mkinc
index e52bb64..6d96176 100755
--- a/config/mkinc
+++ b/config/mkinc
@@ -17,7 +17,7 @@ exec perl /tmp/visitperl$$ $0 ${1+"$@"}
 unlink $0;
 $0 = shift @ARGV;

-#!/usr/bin/perl
+#!/usr/bin/env perl
 #########################################################################
 # Copyright (C) 1994-2016 Lawrence Livermore National Security, LLC.
 # LLNL-CODE-425250.
diff --git a/config/mklite b/config/mklite
index f9394a9..274c867 100755
--- a/config/mklite
+++ b/config/mklite
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl

 #
 # Tool to generate lite_pdb.h file from pdb.h and score.h headers.